双温离子等离子体中尘埃粒子的孤立波--声波
Solitary Dust--Acoustic Waves in a Plasma with Two-Temperature Ions and Distributed Grain Size
摘要：
本文研究了含两种不同温度离子的尘埃等离子体中弱非线性尘埃声波的传播。导出了描述等离子体二次和三次非线性的非线性方程组。结果表明，尘埃声波的性质在很大程度上取决于粒度分布。特别是对于具有正电势的孤立尘埃声波，要使其存在于具有分布颗粒尺寸的等离子体中，两种离子种类之间的温度差必须大于在unusized颗粒的情况下的温度差。
英文摘要：
The propagation of weakly nonlinear dust--acoustic waves in a dusty plasma containing two ion species with different temperatures is explored. The nonlinear equations describing both the quadratic and cubic plasma nonlinearities are derived. It is shown that the properties of dust--acoustic waves depend substantially on the grain size distribution. In particular, for solitary dust--acoustic waves with a positive potential to exist in a plasma with distributed grain size, it is necessary that the difference between the temperatures of two ion species be large that that in the case of unusized grains.
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